Determination of the force of shear of the layers of the flow of a fibrous suspension in the cavity of the working cylinder during its knifeless grinding
https://doi.org/10.53374/1993-0135-2023-3-248-251
Abstract
The main purpose of the work is: to determine the features of knifeless refining of fibrous semi-finished products, taking into account a complex parameter based on the coefficient of dynamic viscosity of fibrous suspensions; development of a new method for determining the viscosity of fibrous suspensions.
For fibrous suspensions, ceteris paribus, an increase in the concentration of the working medium leads to a decrease in the flow rates. This is due to the fact that with increasing concentration, the viscosity of the studied liquids increases. For water, that is, a Newtonian fluid, the value of the outflow velocity is the largest value.
To determine the coefficient of dynamic viscosity during knifeless refining of the fibrous mass, in addition to the values of the fibrous suspension flow rate, it is necessary to calculate the shear area of the layers during the flow of fibrous suspensions in the cavity of the working cylinder and determine the shear force.
The publication presents an analysis of the flow of fibrous suspensions in the process of refining fibrous semifinished products in a knifeless way. For this, theoretically, with the elements of the experiment, the shear forces of the layers of the fibrous suspension flow in the cavity of the working cylinder are determined.
About the Authors
Y. D. Alashkevich
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
A. A. Fomkina
Regional State Autonomous Vocational Educational Institution “Achinsk Oil and Gas Technical School”
Russian Federation
Russian Federation
8. Druzhby Narodov str., Achinsk, Krasnoyarsk Territory, 662155
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Review
For citations:
Alashkevich Y.D., Fomkina A.A. Determination of the force of shear of the layers of the flow of a fibrous suspension in the cavity of the working cylinder during its knifeless grinding. Conifers of the boreal area. 2023;41(3):248-251. (In Russ.) https://doi.org/10.53374/1993-0135-2023-3-248-251
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